HP Tuners 2017-2023 6.6L Duramax ECM Unlock Tool

Upgrade Your E41 ECM with Ease – No Removal Required!

Quickly and conveniently upgrade the E41 ECM in your 2017+ Chevy Silverado & GMC Sierra 2500/3500 6.6L Duramax—all without removing it from the vehicle. In just 20 minutes or less, unlock read, write, and special functions in VCM Suite software using an MPVI2+ (with Pro Feature Set) or MPVI3 interface.

✔ No IMMO Relearn
✔ No Crank Relearn
✔ No "Replace ECM" Function Needed

Upgrade your ECM hassle-free and take full control of your tuning today!

Files for modified VGT Turbos/KC Turbos/Warlock Kit are available.